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#include <stdio.h>
#include <sys/ioctl.h>
#include <uuid/uuid.h>
#include "libbcachefs/bcachefs_ioctl.h"
#include "libbcachefs/opts.h"
#include "cmds.h"
static inline int printf_pad(unsigned pad, const char * fmt, ...)
{
va_list args;
int ret;
va_start(args, fmt);
ret = vprintf(fmt, args);
va_end(args);
while (ret++ < pad)
putchar(' ');
return ret;
}
static void print_fs_usage(const char *path, enum units units)
{
unsigned i, j, nr_devices = 4;
struct bcache_handle fs = bcache_fs_open(path);
struct bch_ioctl_usage *u = NULL;
char uuid[40];
while (1) {
u = xrealloc(u, sizeof(*u) + sizeof(u->devs[0]) * nr_devices);
u->nr_devices = nr_devices;
if (!ioctl(fs.ioctl_fd, BCH_IOCTL_USAGE, u))
break;
if (errno != ENOSPC)
die("BCH_IOCTL_USAGE error: %m");
nr_devices *= 2;
}
uuid_unparse(fs.uuid.b, uuid);
printf("Filesystem %s:\n", uuid);
printf("%-20s%12s\n", "Size:", pr_units(u->fs.capacity, units));
printf("%-20s%12s\n", "Used:", pr_units(u->fs.used, units));
printf("%-20s%12s%12s%12s%12s\n",
"By replicas:", "1x", "2x", "3x", "4x");
for (j = BCH_DATA_BTREE; j < BCH_DATA_NR; j++) {
printf_pad(20, " %s:", bch2_data_types[j]);
for (i = 0; i < BCH_REPLICAS_MAX; i++)
printf("%12s", pr_units(u->fs.sectors[j][i], units));
printf("\n");
}
printf_pad(20, " %s:", "reserved");
for (i = 0; i < BCH_REPLICAS_MAX; i++)
printf("%12s", pr_units(u->fs.persistent_reserved[i], units));
printf("\n");
printf("%-20s%12s\n", " online reserved:", pr_units(u->fs.online_reserved, units));
for (i = 0; i < u->nr_devices; i++) {
struct bch_ioctl_dev_usage *d = u->devs + i;
char *name = NULL;
if (!d->alive)
continue;
printf("\n");
printf_pad(20, "Device %u usage:", i);
name = !d->dev ? strdup("(offline)")
: dev_to_path(d->dev)
?: strdup("(device not found)");
printf("%24s%12s\n", name, bch2_dev_state[d->state]);
free(name);
printf("%-20s%12s%12s%12s\n",
"", "data", "buckets", "fragmented");
for (j = BCH_DATA_SB; j < BCH_DATA_NR; j++) {
u64 frag = max((s64) d->buckets[j] * d->bucket_size -
(s64) d->sectors[j], 0LL);
printf_pad(20, " %s:", bch2_data_types[j]);
printf("%12s%12llu%12s\n",
pr_units(d->sectors[j], units),
d->buckets[j],
pr_units(frag, units));
}
}
free(u);
bcache_fs_close(fs);
}
int cmd_fs_usage(int argc, char *argv[])
{
enum units units = BYTES;
unsigned i;
int opt;
while ((opt = getopt(argc, argv, "h")) != -1)
switch (opt) {
case 'h':
units = HUMAN_READABLE;
break;
}
if (argc - optind < 1) {
print_fs_usage(".", units);
} else {
for (i = optind; i < argc; i++)
print_fs_usage(argv[i], units);
}
return 0;
}
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